CVE detail
CVE-2019-9515
Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 11.0 · diversity 6.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
2 source links · newest first
- Flaws in HTTP/2 implementations expose servers to DoS attacksSecurity Affairs
Experts at Netflix and Google discovered eight denial-of-service (DoS) vulnerabilities affecting various HTTP/2 implementations. Researchers from Netflix and Google discovered eight denial-of-service (DoS) flaws affecting various HTTP/2 implementations. Some of the flawed implementations belong to tech giants such as Amazon, Apple, Facebook, and Microsoft. The security flaws affect the most popular web server software, including […]
newssecurityaffairs.comAug 14, 2019, 4:34 PM Researchers at Netflix and Google have discovered a total of eight denial-of-service (DoS) vulnerabilities affecting various HTTP/2 implementations, including from major tech companies such as Amazon, Apple, Facebook and Microsoft.
newswww.securityweek.comAug 14, 2019, 11:48 AM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
Related records
Similar CVEs
6 related CVEs with shared weakness or product evidence
- CVE-2019-9514CVSS 7.5 · High
Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. The attacker opens a number of streams and sends an invalid request over e…
- CVE-2019-9518CVSS 7.5 · High
Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and…
- CVE-2019-9517CVSS 7.5 · High
Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer ca…
- CVE-2019-9516CVSS 6.5 · Medium
Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-l…
- CVE-2019-9511CVSS 7.5 · High
Some HTTP/2 implementations are vulnerable to window size manipulation and stream prioritization manipulation, potentially leading to a denial of service. The attacker requests a…
- CVE-2019-9513CVSS 7.5 · High
Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service. The attacker creates multiple request streams and continually shuffles th…